.video_tit_box{
	position: relative;
	width: 750upx;
	height: 261upx;
}
.video_tit{
	width: 750upx;
	height: 261upx;
}
.nav-bar{
	position: relative;
	width: 750upx;
	padding:20upx;
	box-sizing: border-box;
	color: #000000;
	font-size: 16px;
	border-bottom: 10upx solid #e0e0e0;
}
.nav-bar-box{
	display: flex;
	flex-direction: row;
	justify-content: flex-start;
	flex-wrap: nowrap;
	flex-shrink: 0;
	align-items: center;
}
.nav-bar-box_1{
	display: flex;
	flex-direction: row;
	justify-content: space-around;
}
.nav-bar-box .item{
	flex-shrink: 0;
	margin-right: 80upx;
}
.nav-bar-box_1 .item{}
.nav-bar .active{
	color: #FFFFFF;
	background-color: #859dc2;
	padding: 0 20upx;
	border-radius: 20upx;
	
}
.video_list{
	width: 690upx;
	margin: 40upx auto;
	display: flex;
	flex-direction: row;
	justify-content: space-between;
	flex-wrap: wrap;
}
.video_box{
	width: 330upx;
	display: flex;
	flex-direction: column;
	box-shadow: 3px 3px 3px #e8e8e8;
	border: 1px solid #e8e8e8;
	border-radius: 10upx;
	overflow: hidden;
	margin-bottom: 20upx;
	padding-bottom: 10upx;
}
.video{
	position: relative;
	width: 330upx;
	height: 320upx;
}
.video-img{
	width: 330upx;
	height: 320upx;
}
.video .play{
	position: absolute;
	width: 53upx;
	height: 54upx;
	left: 50%;
	top:50%;
	margin-left: -27upx;
	margin-top: -27upx;
}
.video-dec{
	font-size: 14px;
	color: #000000;
	width: 300upx;
	margin-left: 15upx;
	white-space: nowrap;
	overflow: hidden;
	text-overflow: ellipsis;
}
.video-bot{
	font-size: 12px;
	color: #999999;
	width: 300upx;
	margin-left: 15upx;
	display: flex;
	flex-direction: row;
	justify-content: space-between;
}
.write-box{
	position: fixed;
	width: 140upx;
	height: 140upx;
	right: 20upx;
	bottom:200upx;
	z-index: 20;
	font-size: 0;
}
.write{
	width: 140upx;
	height: 140upx;
}
.tit_nav{
	text-align: center;
	
}
.banner{ 
	padding: 0; 
	background-color: #FFFFFF;
	}
.banner .banner-img{ 
	width: 750upx;
	}
	